Corrugated shipping container liner



Jan. 28, 1964 R. PoMERAN'rz 3,119,542

coRRuGAIED SHIPPING CONTAINER LINER Filed Jan. 25, 1961 2 sheets-sheet I 3,2,J INVENToR. RAYMOND POMERANTZ BLPW Jan. 28, 1964 R. PoMl-:RAN-rz CORRUGATED SHIPPING CONTAINER LINER 2 Sheets-Sheet 2 Filed Jan. 23, 1961 r 22M m T42 L INVENTOR. RAYMOND DOMERANTZ www..

United States Patent O 3,119,542 CORRUGATED SIHIIING CNTAINER LINER Raymond Posner-anta, 2186 Flatbush Ave., Brooklyn, N.Y. Fiied Jan. 23, 1961, Ser. No. 84,349 1 Claim. (Cl. 229-14) This invention concerns a corrugated paperboard shipping container with spaced liner therefor.

According to the invention there is provided a corrugated paperboard shipping container or carton especially adapted for packing and shipping fragile articles. Heretofore shipping containers formed of corrugated paperboard or cardboard and having inner spaced liners, have employed excelsior, shredded paper or other padding material stuffed and packed around the liners in the spaces between the liners and inner surfaces of the Walls of the containers. The use of such padding material is costly in time, material and labor, is very untidy in appearance, constitutes a fire hazard, and is not always effective, since the loose material shifts in transit leaving unpadded pockets in the container.'

The present invention is directed at overcoming the above and other difficulties and disadvantages by providing an improved corrugated paperboard liner for a shipping carton which avoids the use of supplementary padding materials for lining purposes.

Another object of the invention is to provide a paperboard liner `for a shipping carton which spaces merchandise packed in the carton from the top, bottom, and all side walls, so as to insulate the merchandise effectively from all mechanical and physical shocks and blows regardless o-f the direction of application of the blow to the carton.

A further object is to provide a self-spacing liner, for a paperboard shipping container, constructed entirely of corrugated paperboard sheet material.

A still further object of the invention is to provide a paperboard container having a spaced liner that is easily assembled and the assembled elements of the container and liner held in fixed relation without the use of extraneous metal fastening elements.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claim in which the various novel features of the invention are more particularly Vset forth.

In the accompanying drawings forming a material part of this disclosure:

FIG. l is a perspective view of a carton embodying the invention, the carton being shown open, and parts being broken away.

FIG. 2 is a horizontal sectional view 4taken on line 2 2 of FIG. 1.

FIG. 3 is a vertical sectional view taken on line 3 3 of FIG. 2.

FIG. 4 is a perspective view of a tubular liner and spacer employed in the carton, shown partly folded and partly extended.

FIG. 5 is a perspective view of a liner and spacer member employed in the carton at the top or bottom, shown in folded condition.

FIG. 6 is a horizontal plan View of the member of FIG. 5 in unfolded for-m.

FIG. 7 is a vertical sectional view through the center of the outer carton and inner spaced liner showing the first step in the assembly of the container.

FIG. 8 is a similar view showing the next step.

FIG. 9 is a similar view showing the third step.

FIG. 10 is a view similar to FIG. 3 showing the carton in completely closed condition.

Referring in detail to the drawings, in FIG. l a con- 3,119,542 Patented Jan. 28, 1964 ICC tainer 11i made in accordance with the invention is shown in partly open condition. The container is formed from a strip of corrugated paperboard or berboard sheet material creased and folded to form a rectangular tubular body 116 with side walls 11 and 12 and end walls 13 and 14. The labutting ends of the strip forming the side wall 11 and adjacent end wall 14 are secured together by a gummed paper tape 15 forming a continuous body. Rectangular flaps 11 and 12 are formed on one end of the side walls 11 and 12, respectively, the top end as Viewed in FIGS. l and 7, by crease lines 17. Rectangular flaps 13 and 14 are formed on the same end of the end walls 13 and 14, respectively, by crease lines 19. Similar flaps t11 and 12 are formed on the other end of the side walls 11 and 12, the -bottom end as viewed in FIGS. l and 7, by crease lines 19', and flaps 13 and 14 are formed on the same end of the end walls 13 and 14, rcspectively, by `crease lines 19".

In accordance with the invention a liner structure is provided lfor the body 16, the liner structure being best shown in FIG. 4 and indicated generally at 211. The liner structure is formed of a strip of the same material as the body 16 creased and folded to form side walls 21 and 22 and end walls 23 and 24, the abutting ends of the side wall 21 and end wall 24 being fastened together by a gummed paper tape 25 forming a continuous body. Rectangular aps 2:1 and 22' are formed on one end of the side walls 21 and 22, respectively, the top end as viewed in FIGS. 1 and 7 by crease lines 25. Rectangular flaps 23 and 24 are formed on the same end of the end walls 23 and 24, respectively, by crease lines 26. Similar flaps 21 and 2?." are formed on the other end of the side walls 21 and 22, respectively, the bottom end as viewed in FIGS. 1 and 7, by crease lines 26", and similar flaps '23" and 24" are formed on the same end of the end walls 23 and 24, respectively, by crease lines 27". All of the aps are creased lengthwise, the creases being indicated at 26, dividing the aps into five elongated flat wall sections or folds Z7.

Referring to FIGS. 7 to 10, inclusive, in assembling the folded body 16 and folded liner structure 20 together, the outer body 16 in tubular extended form is placed upright upon a supporting surface S and the liner structure 20 in tubular extended form is inserted therein with its bottom end upon the supporting surface S. The bottom ends of the body 16 and liner structure 20 are ush with each other, but the top end of the body 16 extends above the top end of the liner structure, as seen from FIG. 7. The flaps 21', 22', 2.3', 24 of the liner structure 2t) are then folded, one ap at a time, by folding the topmost wall section 27 of the ap along its crease line 26 by swinging the wall section outwardly and downwardly, in a clockwise direction, as shown by the arrows in FIG. 7, and then folding or rolling the next succeeding wall sections in the same direction along their crease lines until a tube T is formed positioned between the inner structure body and the body 16 of the container. The tube T so formed is rectangular in configuration and square in cross section with the outermost free wall section or fold 27 now disposed across the opening in the tube as seen from FIGS. 3 and 8, serving to reinforce the tube. When the four aps 21', 22', 23', 24 are thus folded into tubes T, said tubes space that end of the liner structure from the body 16 of the container, as seen in FIG. 8. Next a preformed flanged closure plate 3d of corrugated berboard sheet material is inserted between the walls of the liner structure, with the anges 32 thereof clampingly pressed against the inner surfaces of the tubes T as seen in FIG. 8. The closure plate is shaped by forming crease lines 34 along and parallel to the edges of the plate and slightly inwardly thereof and bending the material outwardly of said creased lines perpendicularly to the plane of the body of the plate.

When the plate is so creased, slots 36 are cut across the long creased sides of the plate forming outer detached ends on the long sides of the plate. Such ends are then bent at right angles to the plane of the plate body forming tabs 38 after which the creased ends of the plate are bent at right angles in the same direction carrying the tabs 38 inwardly of the ends of the creased long sides of the plate whereupon the creased long sides are bent upwardly perpendicularly to the plane of the plate body against the tabs 38 interlocking the side and end walls, as shown in FIG. 5.

The partially formed container is then turned upside down and placed upon the supporting surface S as shown in FIG. 9. The unfolded flaps 11" and 12" of the body 16 and the unfolded flaps 21, 22, 23", 24 of the liner structure 20 are now at the top of the partially assembled container as viewed in FIG. 9. The at wall sections 27 of the flaps 21, 22, 23, 24 of the liner structure are then folded outwardly and downwardly after the fashion of the unfolded wall sections of the flaps 21', 22', 23, 24 thereby forming four tubes T at the sides and ends of the liner structure 20.

The articles 40 to be packed and shipped are inserted into the container through the open top into the container inside the liner structure 20. A flanged closure plate 42 similar in construction and assembly to the closure plate 30 is pressed between the inner surfaces of the tubes T thereby sealing off the space inside the container as shown in FIG. 3. The aps 13 and 14 on the ends of the body 16 are next folded inwardly over the closure plate 42, and the flaps 11 and 12' on the sides of the body 16 are then folded inwardly over the flaps 13 and 14 in the direction of the arrows in FIG. 3 completing the erection of the container as shown in FIG. 10.

It will be noted the tubes T and T at both bottom and top of the liner structure space the liner structure away from the Walls of the body 16 thereby providing spaces 44 between the walls of the outer body 16 and the walls of the liner structure 20 on all four sides, and provide spaces 46 between the closure plates 30 and 42 and the flaps at the bottom and top of the liner structure and body 16. Thus, an air space is created between each wall of the body of the container and each wall of the liner structure and between each closure plate and the aps of the liner structure and body of the container.

It will thus be apparent that any merchandise to be packed and shipped in the container 10 will be Wholly contained in the closed chamber defined by the upper and lower closure plates 30, 42 and the walls 21-24 of the liner 20. Air spaces 44 at the sides and spaces 46 at the top and bottom of the container effectively insulate the contents of the container from mechanical shocks in shipment.

It will also be understood that a crate composed of criss-crossed partitions may be inserted in the chamber for holding articles such as eggs, bottles and the like.

It will be noted that the conventional use of shredded paper, excelsior or other stufiing and padding material is avoided. The liner 20 itself provides the spacer means for insulating the liner from the inner walls of the body 16 of the container. The entire shipping container is made of inexpensive corrugated paperboard or berboard. It is quickly assembled and disassembled and can be reused if required.

While I have illustrated and described the preferred embodiment of my invention, it is to be understood that I do not limit myself to the precise construction herein disclosed and that various changes and modiiications may be made within the scope of the invention as defined in the appended claim.

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent is:

A liner for a shipping container comprising a rectangular tubular body having four side walls with creased flaps extending outwardly from opposite edges of said walls, said flaps being foldable to form coplanar rectangular tubes at said edges of said walls, and two closure plates inserted in opposite open ends of said body, each of said plates being a rectangular body with perpendicularly folded edges registering with said edges of said walls and spacing said plate body from the edges of said walls, said folded edges having underlapping at the corners of the plates to reinforce said corners, each of the creased flaps having ve folds so that an outer portion of each creased flap folds inwardly to provide a diagonal reinforcement in each rectangular tube.

References Cited in the iile of this patent UNITED STATES PATENTS 871,452 Smith Nov. 19, 1907 1,585,684 Oppenheim May 25, 1926 1,720,889 Eshlcman July 16, 1929 1,728,894 Oppenheim Sept. 17, 1929 2,412,546 Waters Dec. 10, 1946 2,430,755 Bergstein Nov. 11, 1947 2,444,183 Cahners June 29, 1948 2,603,402 Strauss July 15, 1952 2,808,190 Buhrrnaster et al. Oct. 1, 1957 2,887,264 Fallert May 19, 1959 2,995,288 Iesinghaus Aug. 8, 1961 

